Loom-shuttle.



MAY-'1.9, was.

PATENT@ c. H. GARR 00M SHUTTLE. IOATIOIY FILED AUGA 13, 1907.

APPL

. ing devices may be used so fitlli LOOIv-SHUTTLE No. 887,920. l

Specification of Letters Patent.

Patented May 19, l908.

Application filed August 13, 1907. Serial No. 388,335.

To all whom. it 'may concer/n:

Be it knownthat l, (Maniacs ll'. CARR, a citizen of the United States, and resident of Lowell, county ol4 Middlesex, State of Massachusetts, have invented an lin )roveinent in Loom-Shuttles, of `which the lollowing description, in connection with the accompanying drawing', is a specilication', like letters on the drawing representing like parts.

Thisinvention has for its object the production of'a loom-shuttle` haviugnovel and efficient means for exertingl a substantially constant and uniform tension. on the yarn or thread as it is dra-Wn through the deliveryeye of the shuttle.

I have herein shown my invention applied t0 a loom-shuttle of the automatically seltlthreading type, the threading` device in its genera-l features-,of construction being; substantially the saine as that shown in United States Patent No. 769,9hl, granted bepaal;- ber 1.3, 1904 to Nortl'nop, bnt other threadl'ar as in v invention is concerned.

Inaccordanee with my invention l have arranged the thread tension device innnediately adjacent the delivery-eye oll the shut'- tle, said device comprising essentially two members or parts between which the thread passes, the said members being constantly and yieldinely pressed together.

The various novel features oll my invention will be fully described in the. subjoined specification and particularly pointed out in the 'following elanps.

Figure l isaJ top flan view ol' the delivery end of a loom-slnittle with one embodiment of my invention applied thereto', Fig. 2 is a side elevation thereol', with a portion o1" the Shuttle body broken ont to .show the parts behind it; Fig. 3 is a side elevation ot' the. threading device or bloeli, detached, with my novel tension device applied thereto; Fig. 4 is a right-h. r d end elewz'ition of the dcviee shown in Fig. 3.

The shuttle-body l having an opening 2 to receive the usual idling-carrier or bobbin, and the side, delivery-eye 3, shown in dot-ted lines Fig. 2, may be all of usual construction..

The metallic threading` block 4 has a longitudinal thread-passage 5, with a' narrow or slot like entrance t, and an inclined horn 7 is provided at the lront end of said passage, on the underside ot' the head t which overhangs the delivery-eye ofthe shuttle, Figs. 1 and?.

I. is a llat bloeit l A shield 9 overlaps a beat; lt). the upper end ol' the horn being extended at i i, Fie'. l, to project above the cnt awav part l2 ot' the shuttle-body, Fig. l.

The 'tilling-tl'ire'nd is drawn into the threadpassage 5 and under the beak it), and is then drawn under the extension il and directed downwardly automatically b v the horn 7 and the adjacent portions oi' the .-.lnntle-body, as usual.,

Ordinarily a depending pin at the base ol' the. horn is used to forni a thread-guide around which the ihr-.ad travels on its passage from the threading-passage to the delivery-eye, and an eipiivalent device is employed herein but ol a diti'erent constrmdion.

will be explained.

'l`he lower end or base ol the horn is shaped to present a tlat 'friction face til. in a vplane. parallel to the bott-oni ot' the shuttle and above the bottom oll the passage .are Fig, 4, with a transverse depending shoulder -t at the rear end nl the. lace. Such itattened 'portion lll l'orms one member ol' the tension device in my present invention, and a str-el 'pin or stud l5 is screwed into a threaded hole 1G in the l'ace 13. the pin dcpendinpr theretroni and haviinr at its lower end 'a .head l?, shown as nickeo, Figs. and i Yllhe other member ol' the tension device S loosely mounted on the pin and held pressed constantl)v and yieldingly against the face. 125 by a coiled springr 19 interposed between the block and the head of the pin 15.

[it its rear end the block is squared to rest against the shoulder l-t and be thereby positioned upon the pin and held from any rotative movement, the member 18 extending inward across the iront oll the thread-passage n. see Fig. l beneath the path ol. the thread.`

when the thread is directed downward and rearward b1) the horn 7 and the. partllX oi' the shuttle-body the thread is drawn in beiwren the members lll and iti ol' the tension device and draws around the pin re as it passes through tln-v delivery-eye said pin thus serving as a tlnead-gnide.

rl`he spring it) causes. the tension members to act uponthe thread with a substantially nnit'orni and constant tension or drag, so that there is little` or no variat't'tn in the thread tension duringr weaving.

As the inner portion et' the member KS projects beneatlrl he thread. as the latter ent-ers the thread-passage the thread is prevented from droppinr below the 'tension device.

ity turningthe guide-pin 1:3 in one or the other direction the force oi' the spring 19 is increased or diminished, with a corresponding variation in the tension.

The tension is applied to the thread im mediatelv adjacent point o'l delivery from the shuttle, and the structure is simple and very efficient in operation. '4

Having fully described my invention, what l claim as new and desire to secure by Leteis Patent is l. An. auton:atically-self-threading loomshuttle naming a delivery-eye and means to direct the tilli -thread to the eye, including a 'longitudinal Ythread-passage and a horn; combined with an upright, thread-guide dependingl from the horn adjacent the eye and around Which the thread passes when di rec-ted thereto by the horn a tension device comprising a Ylined member formed by a part ol the horn and movable member mounted.v on the guide and projectinzgr inward beneath the path of the thread in the thread-passage, and a spring` to vieldingly press said member toward the lixed member. 1

An automatically-se|ttlireading loomshuttle having' a delivery-eye and means to direct the illing thread to the eye, including a` longitudinal thread-passage and a liorn,`

.esigono combined with a depending pin screwed into the baseo the horn and having a-headed lower end, the horn being attened around the pin, which latter forms a thread-guide, a

movable tension member on the in, and a"v s ringr between said member andv t -e head of t epin to constantly press the tension mein-- ber against the flattened portion of the horn, the thread passing between such flattened portion and the tension member, as and for the purpose set forth.

3. An automaticallyself-threading loom-y shuttle having a side deliveryeye and threading block provided with a longitudinal threadassage and a horn, to automaticallx7 direct t l1e illing-thread from the passage to Ithe eye, said horn having a friction face and 

